The Fundamental Unit of Life Test

Question 1

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Use the following information to answer the next question.

During an experiment, Reena places a few raisins in a beaker containing pure water. After some time, she observes that the raisins have become swollen. She then places some of the swollen raisins in a beaker containing a highly concentrated salt solution. She observes the beaker for changes after an hour.

What happens to the raisins when they are first placed in purewater and then in theconcentrated salt solution?

They shrink and further shrink respectively.

They swell and further swell respectively.

They swell and shrink respectively.

They shrink and swell respectively.

Question 2
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Ribosomes are present on the surface of which cell organelle?

A
Chloroplast

B
Mitochondria

C
Golgi complex

D
Endoplasmic reticulum

Question 3
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Plant and animal cells are structurally different from each other. Which cell structure is present in plant cells but absent in animal cells?

A
Cell wall

B
Golgi body

C
Plasma membrane

D
Endoplasmic reticulum

Question 4
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Cell wall is present only in plant cells. What is the primary function of cell wall?

A
Controlling various cellular activities

B
Transporting molecules within a cell

C
Helping in the synthesis of ATP

D
Providing structural strength